Summary:
The game crashes when entering a boat and after that reloading the world.

Steps to reproduce:
1. Create a new world with Creative enabled
2. Enter a boat (oak boat from creative inventory)
3. Save the game (save and quit)
4. Reload the world (the game crashes)

Additional steps:
2.1 exit the boat (after entering the boat)

Example: Use the attached boat reload crash.mcworld and enter the boat and reload the world. (attached a world in the state it crashes as well)

Expected results:
The game does not does not crash after entering a boat.